EP2185774A2 - Bearing structure for lightweight structural components - Google Patents
Bearing structure for lightweight structural componentsInfo
- Publication number
- EP2185774A2 EP2185774A2 EP08801199A EP08801199A EP2185774A2 EP 2185774 A2 EP2185774 A2 EP 2185774A2 EP 08801199 A EP08801199 A EP 08801199A EP 08801199 A EP08801199 A EP 08801199A EP 2185774 A2 EP2185774 A2 EP 2185774A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- strips
- support structure
- incisions
- longitudinal
- strip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 9
- 239000011343 solid material Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 8
- 238000007373 indentation Methods 0.000 claims 1
- 239000002184 metal Substances 0.000 description 12
- 238000010276 construction Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
- E04C2/42—Gratings; Grid-like panels
- E04C2/421—Gratings; Grid-like panels made of bar-like elements, e.g. bars discontinuous in one direction
- E04C2/422—Gratings; Grid-like panels made of bar-like elements, e.g. bars discontinuous in one direction with continuous bars connecting at crossing points of the grid pattern
- E04C2/423—Gratings; Grid-like panels made of bar-like elements, e.g. bars discontinuous in one direction with continuous bars connecting at crossing points of the grid pattern with notches
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
- E04C2/34—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts
- E04C2/36—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24174—Structurally defined web or sheet [e.g., overall dimension, etc.] including sheet or component perpendicular to plane of web or sheet
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
- Y10T428/24298—Noncircular aperture [e.g., slit, diamond, rectangular, etc.]
- Y10T428/24314—Slit or elongated
Definitions
- the present invention relates to a support structure for lightweight elements, which consists of elongated strips of a solid material and to methods for producing such a support structure.
- Lightweight components such as those used in aviation, in vehicle construction or in the construction of racing yachts, usually consist of two very thin and even hardly load-bearing cover plates, which describe the respective outer surface of the lightweight element and an interposed support structure.
- This support structure must be as light as possible and at the same time as strong as possible, and in addition support the even not sustainable cover plates in as many places.
- Such a support structure must therefore usually be produced as a spatial, ie three-dimensional element. This is extremely complicated with the previously known constructions, so such lightweight components are extremely expensive.
- the support structure consists of elongated strips of a solid material and each strip is provided from one of its longitudinal sides with incisions whose width is slightly greater than the thickness of the material and which alternately in the longitudinal direction of the strip Fens obliquely forward and obliquely backwards and the individual strips are inserted into each other by means of the incisions so that the longitudinal directions of the nested strips are perpendicular to each other.
- a three-dimensional spatial structure made of simple sheet metal strips, which only need to be provided with corresponding slots by a punching process.
- the oblique course of the slots ensures that the individual metal strips are at an optimum angle to each other in order to accommodate the maximum load for a certain weight of material can.
- the depth of the cuts is selected such that the longitudinal sides of the mutually perpendicular strips touch a surface. This is then the surface of the lightweight element, which is modeled by the contour of the cover plates. With appropriate design of the metal strip can also be a curved surface, and even tubes or profiles are produced.
- the incisions For optimum distribution of forces, it is particularly preferred to arrange the incisions such that they form approximately an equilateral triangle in their extension together with the longitudinal side on which they begin. In this way, the resulting from such metal strips support structure then consists of optimal pyramids or truncated pyramids, the side surfaces are equilateral triangles.
- weight may be preferably mounted in the center of the equilateral triangle a circular punched.
- a further optimization of the force distribution can preferably be achieved in that different incisions with other incisions and with the
- a particularly advantageous method for producing such a supporting structure according to the invention is based on the fact that the strips running in the longitudinal direction are all first arranged in parallel so that their incisions are at the same height and the transverse strips are then inserted into the incisions of the longitudinally extending strips ,
- Figure 1 shows a portion of a metal strip for a support structure according to the invention
- Figure 2 shows the corresponding support structure before the final assembly as an exploded drawing
- FIG. 3 shows the finished support structure of FIG. 2
- FIG. 4 shows a further embodiment of a metal strip according to the invention for a lenticular curved lightweight component
- Figure 5 shows a corresponding lightweight construction element with a curved surface
- FIG. 6 shows a support structure according to the invention for a tubular lightweight component
- Figure 7 shows a method for producing a support structure according to the invention, wherein the longitudinally extending strips are first arranged in a package, and
- FIG. 8 shows a method for producing a supporting structure according to the invention, in which the strips running in the longitudinal direction are immediately brought to those distances which correspond to the distances of the cuts in the transversely extending strips.
- FIG. 1 shows a sheet-metal strip from which a supporting structure according to the invention for a plane lightweight construction element can be produced.
- This sheet metal strip 10 has at its upper longitudinal side 12 in the representation incisions 14, whose width is slightly greater than the thickness of the material of the sheet metal strip 10 and extending alternately in the longitudinal direction of the strip 10 obliquely forward and obliquely backwards. They each form with the longitudinal side 12 an angle ⁇ of 60 ° forward or backward. If you extend the cuts 14 in Thoughts to the opposite longitudinal side 16 of the strip 10, they form a series of equilateral triangles with a truncated tip, which is formed in each case by one of the longitudinal sides 12 and 16 respectively. In the center of each of these imaginary equilateral triangles a circular punched 20 is arranged. This serves to save weight.
- Figure 2 shows how many such individual strips 10 a cuboid support structure is formed.
- the individual strips 10 are inserted with their incisions 14 in each case corresponding recesses 14 in a further strip 10 arranged perpendicular thereto.
- FIG. 3 shows the final result of this assembly work, the strips 10 which are inserted into one another in a crosswise fashion form a structure of respective truncated pyramidal stumps whose respective side surfaces overlap each other via the continuous strip 10 with the side surfaces of the respectively adjacent ones Pyramid stumps are connected.
- This structure has optimum strength.
- FIG. 4 shows a metal strip 110 according to a further embodiment of the present invention.
- This sheet-metal strip 110 likewise has a straight longitudinal side 12 into which in turn the incisions 14 slanted obliquely in the longitudinal direction and in the longitudinal direction at an angle ⁇ of 60 ° are introduced.
- the opposite longitudinal side 116 is in the present case, however, not straight, but arched or curved configured so as to form a supporting structure for a curved lightweight component, such as a wing for an aircraft.
- the further strips 10, which are to be mounted vertically on the strip 110 are already indicated here in the cuts 14 and beyond them.
- FIG. 5 shows the support structure 100 produced from the arched strips 110 and from normal straight strips 10 of different widths for a corresponding lightweight component with a curved surface.
- FIG. 6 shows a further embodiment of the invention in a support structure for a tubular lightweight structural element, which can serve, for example, as a fuselage or as the hull of a racing yacht.
- a tubular lightweight structural element which can serve, for example, as a fuselage or as the hull of a racing yacht.
- the running as a rib strip 210 is formed bent.
- this strip also has the inventive in and against the longitudinal direction of the strip 210 extending incisions 14, which in turn each form an angle ⁇ of 60 ° with the outside of the strip 210.
- corresponding punched 20 can be provided to reduce weight.
- the individual bent strips 210 are then reconnected to normal strips 10 according to the invention as shown in FIG.
- very complex shaped lightweight support structures can be made of a few very easy-to-manufacture basic elements, the strip 10; 110; 210 produce.
- the strips 10; 110; 210 may be made of any solid material, but preferably made of steel, light metal or plastic.
- the connection of the individual strips 10; 110; 210 with each other and with the cover plates can be done by any known joining techniques such as gluing, soldering, welding, riveting, folding and clinching (clinching).
- the finished lightweight element can be constructed not only of two cover plates and a support structure therebetween, but also of a plurality of such layers.
- the strips 10; 110; 210 can be made in the simplest way by a single punching process from continuous bands of the respective material. According to the invention, these strips 10; 110; 210 are then inserted only crosswise into each other, so that a composed of truncated pyramids spatial structure arises, which has an optimal strength as a support structure with low possible weight.
- the preferred width of the cuts 14 results from the material thickness and the insertion angle of the strip 10; 110; 210. Depending on the material used and the ratio of the areas and angles, it may be necessary to broaden the incisions or to incorporate radii, which may then be bridged with filling material or fillings.
- the strips 10; 110; 210 may be punched and / or profiled to further reduce weight (see the punches 20 in the embodiments).
- FIG. 7 shows a particularly preferred method for producing a support structure according to the invention.
- the longitudinally extending strips 10 are all first arranged in parallel so that their incisions are at the same height and the transversely extending strips 10 'are then inserted into the incisions of the longitudinally extending strips 10.
- the longitudinally extending strips 10 are thereby first arranged in a package. Then the transversely extending strips 10 'are inserted, and then the individual longitudinal strips 10 are slid along the inserted transversely extending strips 10' to the respective cuts 14 'in the transversely extending strips 10'.
- FIG. 8 shows a slightly modified production method for the support structure according to the invention, in which the strips 10 extending in the longitudinal direction are immediately brought to distances which correspond to the distances of the cuts 14 'in FIG correspond to the transverse strip 10 1 . Then again the transverse strips 10 'are inserted into the cuts 14 of the longitudinally extending strips 10. If the strips extending in the transverse and longitudinal directions are then pushed into one another, the supporting structure according to the invention inevitably forms on account of the geometric shape of the respective strips 10, 10 '. This is independent of whether an initial configuration according to FIG. 7 or FIG. 8 has been selected.
- the supporting structure according to the invention can also be assembled with many other manufacturing methods from the strips 10 described.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Toys (AREA)
- Rod-Shaped Construction Members (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Laminated Bodies (AREA)
- Sliding-Contact Bearings (AREA)
- Tents Or Canopies (AREA)
- Bridges Or Land Bridges (AREA)
- Manipulator (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL08801199T PL2185774T3 (en) | 2007-08-18 | 2008-08-18 | Bearing structure for lightweight structural components |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202007011599U DE202007011599U1 (en) | 2007-08-18 | 2007-08-18 | Support structure for lightweight components |
PCT/DE2008/001376 WO2009024141A2 (en) | 2007-08-18 | 2008-08-18 | Bearing structure for lightweight structural components |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2185774A2 true EP2185774A2 (en) | 2010-05-19 |
EP2185774B1 EP2185774B1 (en) | 2011-01-19 |
Family
ID=38690664
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08801199A Not-in-force EP2185774B1 (en) | 2007-08-18 | 2008-08-18 | Bearing structure for lightweight structural components |
Country Status (15)
Country | Link |
---|---|
US (1) | US8404329B2 (en) |
EP (1) | EP2185774B1 (en) |
JP (1) | JP5123388B2 (en) |
CN (1) | CN101827984B (en) |
AT (1) | ATE496182T1 (en) |
BR (1) | BRPI0815485A2 (en) |
CA (1) | CA2694350A1 (en) |
DE (3) | DE202007011599U1 (en) |
DK (1) | DK2185774T3 (en) |
EA (1) | EA016550B1 (en) |
ES (1) | ES2358968T3 (en) |
MX (1) | MX2010001859A (en) |
PL (1) | PL2185774T3 (en) |
PT (1) | PT2185774E (en) |
WO (1) | WO2009024141A2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2939818A1 (en) * | 2008-12-12 | 2010-06-18 | Patricia Julien | FACADE PROTECTION DEVICE AGAINST GRAFFITI |
JP6951059B2 (en) * | 2016-08-01 | 2021-10-20 | 花王株式会社 | Detergent composition for screen plate |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1611316A (en) * | 1925-07-25 | 1926-12-21 | Grating Company | Connected-bar structure |
US1740219A (en) * | 1926-05-26 | 1929-12-17 | Tri Lok Company | Grating structure |
GB929494A (en) | 1959-09-25 | 1963-06-26 | Allan Kennedy & Co Ltd | Improved grating or floor panel |
GB1512643A (en) | 1974-06-21 | 1978-06-01 | Passmore M | Rigid structure |
DE7608866U1 (en) | 1976-03-23 | 1976-07-15 | Riegelein Hans & Sohn | Stackable packaging |
US4890433A (en) * | 1987-12-15 | 1990-01-02 | Motokatsu Funaki | Tile mounting plate and tiled wall structure |
US5157892A (en) * | 1990-07-27 | 1992-10-27 | Ryther Ronald R | Structural interlocking joint system |
JPH04110823U (en) * | 1991-01-29 | 1992-09-25 | 三和シヤツター工業株式会社 | metal core material |
JPH0550169A (en) * | 1991-07-17 | 1993-03-02 | Sumitomo Light Metal Ind Ltd | Honeycomb core |
AU674700B2 (en) * | 1992-11-18 | 1997-01-09 | Chow Pak Lim | Paper pallet |
JPH0728631U (en) * | 1993-11-10 | 1995-05-30 | 三菱アルミニウム株式会社 | Brazed honeycomb panel |
CN2311556Y (en) * | 1997-06-02 | 1999-03-24 | 李文男 | Improved ceiling light steel supporting frame |
JP4412754B2 (en) * | 1999-01-29 | 2010-02-10 | 富士重工業株式会社 | Method for integrally forming a structure |
DE19922295C1 (en) * | 1999-05-14 | 2000-07-27 | Eurocopter Deutschland | Underfloor structure of fuselage cell for helicopter is connected with floor and outer fuselage shell, comprising interconnected longitudinal and crossbearers |
US6148834A (en) * | 1999-07-01 | 2000-11-21 | Grooms, Sr.; Tally R. | Modular tent platform system |
JP2001262771A (en) * | 2000-03-23 | 2001-09-26 | Daiken Trade & Ind Co Ltd | Core member for panel and panel using the same |
-
2007
- 2007-08-18 DE DE202007011599U patent/DE202007011599U1/en not_active Expired - Lifetime
-
2008
- 2008-08-18 AT AT08801199T patent/ATE496182T1/en active
- 2008-08-18 BR BRPI0815485-6A2A patent/BRPI0815485A2/en not_active IP Right Cessation
- 2008-08-18 DK DK08801199.4T patent/DK2185774T3/en active
- 2008-08-18 DE DE502008002424T patent/DE502008002424D1/en active Active
- 2008-08-18 ES ES08801199T patent/ES2358968T3/en active Active
- 2008-08-18 PL PL08801199T patent/PL2185774T3/en unknown
- 2008-08-18 CA CA2694350A patent/CA2694350A1/en not_active Abandoned
- 2008-08-18 US US12/670,087 patent/US8404329B2/en not_active Expired - Fee Related
- 2008-08-18 JP JP2010521301A patent/JP5123388B2/en not_active Expired - Fee Related
- 2008-08-18 EP EP08801199A patent/EP2185774B1/en not_active Not-in-force
- 2008-08-18 DE DE112008002836T patent/DE112008002836A5/en not_active Withdrawn
- 2008-08-18 EA EA201000326A patent/EA016550B1/en not_active IP Right Cessation
- 2008-08-18 PT PT08801199T patent/PT2185774E/en unknown
- 2008-08-18 MX MX2010001859A patent/MX2010001859A/en active IP Right Grant
- 2008-08-18 WO PCT/DE2008/001376 patent/WO2009024141A2/en active Application Filing
- 2008-08-18 CN CN2008801036732A patent/CN101827984B/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2009024141A2 * |
Also Published As
Publication number | Publication date |
---|---|
US8404329B2 (en) | 2013-03-26 |
DE202007011599U1 (en) | 2007-11-15 |
DE112008002836A5 (en) | 2010-07-22 |
WO2009024141A2 (en) | 2009-02-26 |
JP2010536636A (en) | 2010-12-02 |
PL2185774T3 (en) | 2011-06-30 |
MX2010001859A (en) | 2010-12-06 |
US20100196657A1 (en) | 2010-08-05 |
EP2185774B1 (en) | 2011-01-19 |
EA201000326A1 (en) | 2010-08-30 |
CN101827984B (en) | 2012-03-21 |
CN101827984A (en) | 2010-09-08 |
EA016550B1 (en) | 2012-05-30 |
WO2009024141A3 (en) | 2010-02-18 |
ES2358968T3 (en) | 2011-05-17 |
DE502008002424D1 (en) | 2011-03-03 |
ATE496182T1 (en) | 2011-02-15 |
DK2185774T3 (en) | 2011-04-18 |
PT2185774E (en) | 2011-04-05 |
BRPI0815485A2 (en) | 2015-02-18 |
CA2694350A1 (en) | 2009-02-26 |
JP5123388B2 (en) | 2013-01-23 |
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